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5. Notes Payable (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Interest payments			$ 245	$ 4,809
Third Eye Capital Term Notes
Principal and interest outstanding	$ 6,200		6,200
Unamortized discount	200		200
Third Eye Capital Revolving Credit Facility
Principal and interest outstanding	22,700		22,700
Unamortized debt issuance costs	600		600
Third Eye Capital Revenue Participation Term Notes
Principal and interest outstanding	10,400		10,400
Unamortized discount	300		300
Third Eye Capital Acquisition Term Notes
Principal and interest outstanding	18,100		18,100
Unamortized discount	500		500
Cilion shareholder Seller note payable
Principal and interest outstanding	5,400		5,400
State Bank of India secured term loan
Principal and interest outstanding	2,600		2,600		$ 2,600
Default interest payable	3,800		3,800		3,400
Subordinated Notes
Principal and interest outstanding	5,800		5,800		5,400
Unamortized discount	200		200
EB-5 long-term promissory notes
Principal and interest outstanding	21,500		21,500
Unsecured working capital loans
Principal and interest outstanding	2,800		2,800		$ 1,300
Principal payments made	300	$ 1,000	1,000	2,300
Interest payments	$ 66	$ 23	$ 104	$ 74

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